Perfect for working in tight spaces: open end and ratcheting box end design. Oval shape beam improved comfort, Our ratcheting flex wrenches pivots 180°to easily get around obstructions Make Work Easier: 72-tooth ratchet box end needs only a 5° working swing arc to operate it. Helps to accelerate your operation at these confined areas 12-Point & Off-Corner: 10mm ratcheting wrench comes with 12-pointed box end wrench provides a more precise and exact fit. Better leverage Premium Quality: Forged and heat-treated chrome vanadium steel for lasting strength and extra durability. Each wrench is tested strictly against industry standards for hardness, torque and surface Widely Application: Sutiable for fastening or loosening nuts and bolts in narrow space. Applicable to home projects, garage works, auto repairs, truck support, plumbing, constructions, machinery and a lot more 180-Degree Flex Head Smoothly pivoting through 180 degrees, the box end head holds any angle to slide onto fasteners. It is free to move with each stroke, allowing the wrench to navigate around obstructions along the swing path. 72 Teeth Perfect Precision The ratcheting 12-Point box-end needs as little as 5-Degree to move fastener VS. 30-Degree for standard box end wrenches increasing productivity. 5-Degree Swing Arc A ratchet gear with 72 teeth requires just 5 degrees of swing arc to reach the next tooth position, so it's fast and efficient when there's not much room to move. The teeth of the ratchet gear are cut, not press formed, creating a crisp, precise profile that fully engages with the pawls and can't skip or slip under high stress. Angled Open End The open end is angled 15 degrees so the wrench can be flipped over with each rotation to engage the fastener twice as often in tight spaces.